Portable storage batteries are rechargeable portable power sources that typically use lithium-ion batteries or other types of rechargeable batteries. They can be charged via a charger or USB port and have multiple outputs for powering different types of devices (e.g., cell phones, tablets, laptops, etc.).

Portable storage batteries (e.g., Action Power) have the following advantages and features over other forms of batteries:

Portability: portable storage batteries are usually small and lightweight and can be easily carried in a pocket or handbag. They are perfect for occasions such as traveling, camping, outdoor activities, or for use on the move.

Rechargeability: Portable storage batteries are rechargeable and can be charged and discharged multiple times. This means they can be used for long periods of time and also saves a lot of money on batteries.

Multiple Output Interfaces: Portable storage batteries usually have multiple output interfaces, such as USB, Type-C, etc., which can power different types of devices, such as cell phones, tablets, and laptops.

High safety: Most portable energy storage batteries are equipped with battery protection circuits, which can ensure the safety of the battery when charging and discharging, and prevent dangerous situations such as overcharging, over-discharging, short-circuiting and over-current.

High efficiency: Portable energy storage batteries have high energy conversion efficiency, usually able to convert stored chemical energy into electrical energy, thus providing stable and reliable power for equipment.

Portable energy storage batteries are usually composed of electric cells, circuit protection boards, shells and corresponding output lines. They are usually compact and lightweight, easy to carry, safe and reliable, and highly efficient, and are widely used in occasions such as traveling, camping, outdoor activities, or on the move.